September – Sow, Grow, Harvest Veg

Vegetable Seeds to Sow in September

September is the beginning of Autumn, think cosy blankets, hot chocolate, pumpkins, autumn leaf colour changes

There’s still lots of different vegetables to sow for Autumn & Winter, start sowing early in the month for best results. Sow Pak Choi, Florence Fennel, Kale, Spring Cabbage, Winter Radish & Turnips.

Flowers – Sow Calendula ‘Winter Sun’ for early Spring flowers to go with the daffodils.



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September Sowing in Raised Beds


Sow Florence Fennel

Grow your own Fennel. Florence fennel is a smaller bulb, still packing a mild liquorice flavour. Harvest Feb- March. Add to casseroles.

Closeup of harvested radishes

Sow Winter Radish

A Winter Radish is a hardier radish that lasts in the ground through cold weather. Winter radishes usually have coloured insides like bright pink or deep reds. I’m going to be sowing these this year.

Sow Turnips

Turnips are fast growing veg, harvesting in 6-10 weeks. They are high in vitamins. Sow them away from other root crops as they take the nutrients away. I haven’t grown turnips before, but theres always a first time for everything!


Planting in September


Winter Plugs – Plant Now!

If you have already have a head start on buying winter plug plants like cauliflower, spring cabbage & kale, then plant them outside now whilst it’s still warm, so they can get a head start on winter.

Red and green lettuce bowl growing

Winter or Red Lettuce

If you started sowing more lettuce in July now’s the time to plant it out, the temperatures are cooler, and the rain is here to help them produce fresh green leaves. Sow more Winter Lettuce now.

Calendula Flower Seedlings

If you sowed Calendula flowers last month, it’s time to plant out the seedling now. It’s still time to sow the ‘Wintersun’ variety now for Spring flowers straight into the ground.


Jobs To Do in September


Final Harvests before Autumn

Harvest those final summer vegetables like tomatoes & courgettes. Squashes & pumpkins if the stem has gone brown. The colder temperatures are on their way, so get things organised before then.

Add Compost for Nutrients

It’s time to top up your beds for winter, add multipurpose compost on the surface and the rain & worms will take the nutrients down into the soil. Cover bare soil with cardboard or grown Green Manure to keep the soil structure from getting too waterlogged.

Buy your Onion Sets, Garlic or Shallots

If you haven’t already, buy onion sets, garlic or shallot sets to plant in September to October. Try local garden centres or reputable garden suppliers online.


The September Veg Garden


Waiting for a Pumpkin Harvest

Waiting for the Pumpkin stems to go brown and crispy and then we can cut and store them in a cool dry place until Halloween.

Last of the Courgettes

The courgette plant was earmarked for removal due to powdery mildew, except a few days later, it’s growing more courgettes!

Late Summer Sweetcorn

The sweetcorn are producing tassels but I’m concerned that they are not tall enough to grow cobs. We shall see as they were very late in the ground.


Harvests in September


Apple Harvest from Dwarf Tree

A bumper harvest from the columnar apple tree that didn’t produce any last year, no idea on variety but they taste good.

Apple cake, apple tart, apple crumble, apple pie, apple turnover, Apple strudel, stewed apple, plenty to be getting on with!

Last of the Tomatoes

The last of the Tomatoes have been harvested, again I think they did better outside that in the greenhouse and I even got a few black tomatoes (the might just ripen in time).

Last of the Blackberries

We finally wrestled the blackberries back from the summer wasps and harvested the last of the vines. It’s been an amazing harvest for fruits this year.


Pests & Diseases in September


Powdery Mildew

Powdery Mildew is a fungal disease which is now on my Spinach. It is airborne and spread by water so it hard to fix. Find out how to treat this and other leaf diseases that occur in September.

Spinach – Leaf Miner

If you start to see brown, black or translucent parts on your spinach leaves, this could be due to a leaf miner. There’s not a lot you can do apart from sow some more spinach, chard or lettuce.

Caterpillars on Brassicas

Cabbage white butterflies will be causing chaos laying bright yellow eggs on the undersides of leaves.

Then you’ll have problems as they hatch into hungry caterpillars. Around until Oct.



More Months – Seeds To Sow & Jobs To Do in the Vegetable Garden

About Me

Hi, I’m Tracey — vegetable grower, passionate learner, and firm believer that anyone can grow their own food. While I work as an account manager during the day, my spare time has been dedicated to growing vegetables in my back garden for the last 23 years.

What started as a hobby grew into a passion, and now I’m building a place where others can learn too. This is your veg-growing hub for practical advice, seasonal inspiration, beginner-friendly learning, and real gardening experiences from someone who’s grown through every success and setback.

Real gardening, real learning, real harvests.

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